Abstract

Background

Vitamin D concentrations are linked to body composition indices, particularly body
fat mass. Relationships between hypovitaminosis D and obesity, described by both BMI
and waist circumference, have been mentioned. We have investigated the effect of a
12-week vitamin D3 supplementation on anthropometric indices in healthy overweight
and obese women.

Methods

In a double-blind, randomized, placebo-controlled, parallel-group trial, seventy-seven
participants (age 38±8.1 years, BMI 29.8±4.1 kg/m2) were randomly allocated into two groups: vitamin D (25 μg per day as cholecalciferol)
and placebo (25 μg per day as lactose) for 12 weeks. Body weight, height, waist, hip,
fat mass, 25(OH) D, iPTH, and dietary intakes were measured before and after the intervention.